CN107366578A

CN107366578A - system and method for engine booster

Info

Publication number: CN107366578A
Application number: CN201710329164.2A
Authority: CN
Inventors: C·D·威克斯
Original assignee: Ford Global Technologies LLC
Current assignee: Ford Global Technologies LLC
Priority date: 2016-05-13
Filing date: 2017-05-11
Publication date: 2017-11-21
Anticipated expiration: 2037-05-11
Also published as: RU2017112512A; RU2017112512A3; CN107366578B; US9771857B1; DE102017109805A1

Abstract

The system and method that disclosure is used for engine booster.Explosive motor can be couple to two-step engine supercharging system to provide desired supercharging to engine so as to meet torque demand.Two-step engine supercharging system can then switch to first by the way that nitrous oxide is ejected into engine to provide supercharging to engine and provide supercharging from longitudinal beam supercharging air system to generate desired supercharging.The air of air pump from the speed changer for being couple to engine can be with so that air flows to longitudinal beam supercharging air system and is used to store and be used subsequently to provide supercharging to engine.

Description

System and method for engine booster

Technical field

The present invention relates to the system and method for engine booster.

Background technology

Explosive motor is couple to engine supercharging system, and it conveys supercharging to meet engine torque need to engine Ask.Engine supercharging system can be so that including compressor, it conveys compressed air on the entrance side of engine, so as to increase pair The available supercharging of engine.Oxygen reinforcing agent, which is added in the cylinder of explosive motor, to be reduced intake air temperature, improves cylinder pressure, And provide supercharging to engine by allowing the more fuel of engine combustion.Increased fuel combustion produces driving piston Downward more cylinder pressures, so as to bent using causing more engine powers to meet that the bigger power of torque demand rotates Shafting.A kind of widely used oxygen reinforcing agent is nitrous oxide.As nitrous oxide (N₂0) it is injected into engine cylinder When, the initial combustion in cylinder produces enough heat so that nitrous oxide is separated into its two kinds of compositions：Nitrogen and oxygen.Once occur This separation, then more multi fuel that oxygen can be used in combustion engine.

Trial to engine conveying supercharging includes the U.S. Patent application of open nitrous oxide spraying system System disclosed in No.20110308483A1, wherein nitrous oxide are stored in case and guided from case at elevated pressures To fuel supply lines.The nitrous oxide mixed with the fuel in fuel supply lines is delivered directly in engine cylinder To provide required supercharging to engine.

However, inventor has appreciated that the problem of above method herein.Although some vehicle conditions require high, continued Boost demand (for example, engine supercharging system in racing car), but most of real world travel conditions require it is relatively short The supercharging duration for engine provide secondary power (for example, during accelerated events).Therefore, some engines Pressure charging system can be constructed to provide than actually required more superchargings, so as to increase Vehicular system cost and complexity.

The content of the invention

Inventor herein proposes two-step pressure charging system at least partly to solve issue noted above.In an example In, two-step pressure charging system can include：The nitrous oxide storage box of engine is fluidly coupled to by feed line；By The air pump of the speed changer driving of engine, the air pump are fluidly connected to the longitudinal beam (frame for being fluidly coupled to engine Rail) pressure charging system；The first valve that regulation nitrous oxide flows from feed line to engine；And air is adjusted from vehicle frame The second valve that longeron pressure charging system flows to engine.

The exemplary method of operation two-step pressure charging system can include：It is higher than threshold value in response to engine torque demand, from Nitrous oxide spraying system reaches greatly to engine spray nitrous oxide, and in response to engine torque demand higher than threshold value Be higher than threshold pressure in threshold time and in response to the pressure of longitudinal beam pressure charging system, the injection of pause nitrous oxide and From longitudinal beam pressure charging system to engine spray compressed air, longitudinal beam pressure charging system drives from by the speed changer of engine Air pump receive compressed air.

In this way, supercharging can be sprayed by nitrous oxide or be stored in longitudinal beam supercharging by being converted to injection Compressed air in system and be fed to engine, so as to provide with cost benefit and efficient system in real generation Supercharging is conveyed during boundary's travel conditions.

It should be understood that, there is provided above present invention is these concepts in order to introduce series of concepts in simplified form It is further described in a specific embodiment.This is not meant to the key or essential feature of the claimed theme of identification, The scope of claimed theme is uniquely limited by the claim for embodiment of enclosing.Furthermore, it desired to the master of protection Topic is not limited to the embodiment for any shortcoming that solution refers to above or in any part of the disclosure.

Brief description of the drawings

Fig. 1 shows the embodiment of explosive motor.

Fig. 2 illustrates two-step engine supercharging system, and it has the air pump and nitrous oxide for being couple to engine Case.

Fig. 3 shows the perspective view of Fig. 2 two-step engine supercharging system.

Fig. 4 shows the air pump of two-step engine supercharging system.

Fig. 5 shows the nitrous oxide case of two-step engine supercharging system.

Fig. 6 is the schematic diagram of Fig. 2 two-step engine supercharging system.

Fig. 7 illustrates the method for operating two-step engine supercharging system.

Fig. 8 illustrates the exemplary operations order of the two-step engine supercharging system for Fig. 2.

Embodiment

For example, during up-hill journey, by conveying pressurized air and/or by supplying oxygen source to engine to engine To improve fuel combustion, sufficient supercharging can be provided to engine to meet torque demand, so as to generate the power of abundance with For meeting torque demand.Engine system shown in Fig. 1 can be couple to one or more engine supercharging systems to provide Desired moment of torsion.Two-step engine supercharging system shown in Fig. 2 to Fig. 5 can be couple to Fig. 1 engine with by hair Motivation conveys nitrous oxide or compressed air is conveyed from longitudinal beam pressure charging system to engine come to starting by being converted to Machine provides required supercharging.Air flow path along two-step engine supercharging system to engine is shown in Fig. 6 schematic diagram. Method according to Fig. 7, in response to engine operation parameters, the valve of nitrous oxide can be conveyed by adjusting and from vehicle frame Longeron pressure charging system operates two-step engine supercharging system to the position of the valve of engine conveying compressed air.Fig. 8 is shown The exemplary operations order of two-step engine supercharging system.

Fig. 1 to Fig. 5 shows the example arrangement of the relative positioning with all parts.At least in one example, if by Show to be in direct contact with one another or directly couple, then this class component can be known respectively as directly contact or directly coupling.Similarly, At least in one example, be illustrated element adjacent to each other or neighbouring can distinguish it is adjacent to each other or neighbouring.Show as one Example, the part of contact coplanar with each other can be referred to as co-planar contacts.As another example, at least one example, each other every Open positioning and only there is space can as above be called without the element of other parts therebetween.As another example, it is illustrated Can be relative to each other by as above in mutual above/below, the element at mutual opposite side or on mutual left/right side Address.Further, as illustrated, at least one example, the peak of highest element or element can be referred to as part " top ", and lowest component or the minimum point of element can be referred to as " bottom " of part.As used herein, top/ Bottom, up/down, above/below can be the vertical axis relative to accompanying drawing and for describing the element of accompanying drawing relative to that This positioning.Therefore, in one example, other elements can be vertically positioned at by being illustrated in the element above other elements Top.As another example, the shape of the element being described in the drawings can be referred to as having those shapes (it is such as, circular, Straight line, plane, bending, circle, chamfered edge, it is angular etc.).Further, at least one example, that are illustrated This intersecting element can be referred to as intersecting element or intersect each other.Further, in one example, it is illustrated in another In element or the element that is illustrated in outside another element can as above be called.

Fig. 1 is the signal of a cylinder of multicylinder engine 10 for showing to be included in the propulsion system of automobile Figure.Engine 10 at least partly can come from vehicle operating by the control system including controller 12 and via input unit 130 The input control of person 132.In this example, input unit 130 includes accelerator pedal and for generating proportional pedal position Confidence PP pedal position sensor 134.The combustion chamber (cylinder) 30 of engine 10 can include having what is positioned wherein The chamber wall 32 of piston 36.Piston 36 can be couple to bent axle 40 so that the reciprocating motion of piston is converted to the rotation fortune of bent axle It is dynamic.Bent axle 40 can be couple at least one driving wheel of vehicle via intermediate transmission system.Further, starter motor Bent axle 40 can be couple to via flywheel to realize the start-up function of engine 10.

Combustion chamber 30 can receive air inlet via inlet channel 42 from inlet manifold 44, and can be via exhaust passage 48 Discharge burning gases.Inlet manifold 44 and exhaust passage 48 can be via corresponding inlet valve 42 and exhaust valve 54 and combustion chambers 30 Selectively communicate with.In some instances, combustion chamber 30 can include two or more inlet valves and/or two or more Exhaust valve.

In this example, inlet valve 52 and exhaust valve 54 can pass through cam via corresponding cam-actuated system 51 and 53 Actuation control.Cam-actuated system 51 and 53 may each comprise one or more cams and can utilize can be by controller 12 Operation converts (CPS) system, variable cam timing (VCT) system, VVT to change the cam profile of air door operation (VVT) one or more of system and/or lift range variable (VVL) system.The position of inlet valve 52 and exhaust valve 54 can To be determined respectively by position sensor 55 and 57.In alternative embodiments, inlet valve 52 and/or exhaust valve 54 can be by electronic gas Door actuation control.For example, cylinder 30 alternatively can include via the inlet valve of electric air valve actuation control and via including CPS The exhaust valve of the cam-actuated control of system and/or VCT system.

In the configuration that the intake port injection being referred to as in air intake duct of the fuel to the upstream of combustion chamber 30 is provided, fuel injector 66 are illustrated to be arranged in inlet manifold 44.Fuel injector 66 can be sprayed with being connect via electronic driver 68 from controller 12 The proportional fuel of the signal FPW of receipts pulse width.Fuel can be by including the fuel of fuel tank, petrolift and fuel rail System (not shown) is transported to fuel injector 66.In certain embodiments, combustion chamber 30 can alternatively or additionally wrap Include be directly coupled to combustion chamber 30 for wherein in a manner of being referred to as directly spraying direct fuel injection fuel injection Device.In addition, the second fuel injector 67 can be arranged in inlet manifold 44.

Inlet channel 42 can include the air throttle 62 with choke block 64.In the particular example, the position of choke block 64 Put and can be changed by controller 12 via the signal provided to the electro-motor or actuator for including air throttle 62, the configuration Commonly known as Electronic Throttle Control (ETC).There is provided in this way it is possible to operate air throttle 62 with changing to combustion chamber 30 Etc. the air inlet in other engine cylinders.The position of choke block 64 can be provided by throttle position signal TP and arrive controller 12.Inlet channel 42 can include mass air flow sensor 120 and Manifold Air Pressure sensor 122, for control Device 12 provides corresponding signal MAF and MAP.

Under selected operator scheme, ignition system 88 can in response to the spark advance signal SA from controller 12 via Spark plug 92 provides pilot spark to combustion chamber 30.Although showing spark ignition part, in certain embodiments, having or In the case of not having pilot spark, one or more of the other combustion chamber of combustion chamber 30 or engine 10 can be with compression ignition mould Formula operates.

Exhaust sensor 126 is illustrated to be couple to the exhaust passage 48 of the upstream of emission control system 70.Sensor 126 can be with It is (general or wide for any suitable sensor of the instruction for providing exhaust air-fuel ratio, such as linear oxygen sensors or UEGO Domain exhaust gas oxygen sensor), bifurcation lambda sensor or EGO, HEGO (hot type EGO), NOx, HC or CO sensor.Emission control fills 70 are put to be illustrated to arrange along the exhaust passage 48 in the downstream of exhaust sensor 126.Device 70 can be three-way catalyst (TWC), NOx Trap, various other emission control systems or its combination.In certain embodiments, can be with during the operation of engine 10 Emission control system 70 is periodically reseted by operating at least one cylinder of engine in specific air-fuel ratio.

Engine 10 can also include compression set, the compressor 162 such as arranged along inlet manifold 44.Compressor 162 The speed changer 161 of engine can be couple to and at least partly driven by speed changer 161, while no turbine can be couple to Compressor.Air inlet discrimination can be directed into by air line 163 by carrying out the air for the compressor 162 that free speed changer 161 drives Pipe 44.In one example, the air line 163 from compressor 162 can link the inlet manifold 44 of the upstream of air throttle 62. The downstream of compressor 162 may have charger-air cooler 165.Charger-air cooler 165 can be in the upper of air throttle 62 Trip, along air line 163, link inlet manifold 44.In other examples, more than one charger-air cooler can be deposited It is between compressor 162 and engine 10.In one example, turbocharger can be included, wherein (it can be with for compressor For independent compressor or compressor 162) it can be driven at least in part by turbine via the axle arranged along exhaust passage 48.

Can be by controlling via compression (for example, supercharging) amount of the offer of compressor 162 to one or more cylinders of engine Device 12 processed changes.Further, sensor 123 can be arranged in inlet manifold 44, for providing BOOST letters to controller 12 Number.Gear-box can make the output shaft of speed changer 161 be couple to the input shaft of compressor 161, be discussed further as will be referred to Fig. 2 's.Air compressor 162 can be adjusted by controller 12 by the engagement of speed changer 161 and can depend on power operation Parameter, as discussed below with reference to Fig. 2 to Fig. 7.

In addition to compressor 162, additional pressurization system, such as (such as nitrous oxide sprays oxygen reinforcing agent spraying system Penetrate system) additional oxygen can be introduced into improve fuel combustion in engine cylinder, so as to provide supercharging to engine.According to bag The engine operation parameters of engine torque demand, engine speed, gear ratio etc. are included, can adjust and be couple to the one of engine Individual or multiple pressure charging systems, provide desired supercharging to engine in the most efficient manner.

Controller 12 is illustrated as microcomputer in Fig. 1, including microprocessor unit 102, input/output end port 104, For the electronic storage medium of executable program and calibration value-in the particular example be illustrated as ROM chip 106, Random access memory 108, not dead-file 110 and data/address bus.In addition to those signals discussed before, controller 12 The various signals from the sensor for being couple to engine 10 can be received, including from mass air flow sensor 120 The measured value of the Mass Air Flow (MAF) of introducing；Engine cool from the temperature sensor 112 for being couple to water jacket 114 Agent temperature (ECT)；Surface ignition from the hall effect sensor 118 (or other types of sensor) for being couple to bent axle 40 Sensing signal (PIP)；Throttle position (TP) from TPS；And from Manifold Air Pressure sensor 122 absolute Manifold Pressure Signal MAP.Engine speed signal RPM can be generated by controller 12 from signal PIP.From discrimination The manifold pressure signal MAP of pipe pressure sensor may be used to provide the instruction of the vacuum or pressure in inlet manifold.Pay attention to, can With using the various combinations of the sensor, such as with maf sensor without MAP sensor, or vice versa it is as the same.Changing During learning metrological operation, MAP sensor can provide the instruction of engine torque.Further, the sensor and detect Engine speed can provide the estimation of the inflation (including air) introduced in cylinder together.In one example, can also use The equi-spaced pulses of predetermined quantity can be produced when bent axle often rotates a circle by making the sensor 118 of engine speed sensor.

Storage medium read-only storage 106 can use the computer-readable number for the instruction for representing to be performed by processor 102 According to programming, for performing method described below and being expected but not specifically listed other variants.

Fig. 2 will be described to Fig. 5 jointly.Fig. 2 to Fig. 5 shows to be couple to the two-step engine supercharging system of engine 201 200.Engine 201 can be multicylinder engine, such as engine 10, and Fig. 1 shows the single cylinder of engine 10.Two-step is sent out Motivation pressure charging system 200 can include nitrous oxide spraying system 250 and the longitudinal beam for providing supercharging to engine Pressure charging system 252, it is as discussed below.Speed changer 222 can be couple to engine 201.

Speed changer 222 can be couple to engine by fluid torque-converter (not shown).Engine output can be via liquid Power torque-converters is sent to speed changer 222 by engaging one or more transmission clutch (not shown).Change can be automatically selected Fast device gear, or vehicle operators can select transmission gear by adjusting the gear of vehicle selector (not shown) of coupling. In the case where being with or without multiple torque, in response to various engine operating conditions, for example, based on engine torque demand, starting Machine speed etc., moment of torsion can be sent to speed changer 222 from engine 201.

Torque output from speed changer 222 is transferred can be for delivery to wheel (not shown) to promote vehicle.Specifically, ring Traveling state of vehicle of the Ying Yu before output driving power is transmitted to wheel, speed changer 222 can drive along input axial adjustment input Power.In response to vehicle operators brake pedal (not shown), wheel can for example, by engage wheel drag and by Locking.In an identical manner, in response to vehicle operators discharge brake pedal, wheel can by depart from wheel drag and by Unblock.

Speed changer 222 can also include additional output shaft, for example, being couple to the output shaft of air pump 220.In an example In, electromagnetic clutch 221 can make air pump 220 be joined to speed changer 222 or air pump 220 is departed from speed changer 222.At one In example, speed changer 222 can transmit power in engagement from engine to the output shaft for being couple to air pump 220, so as to driving gas Pump.In one example, air pump 220 can be air compressor, and its compressed air is applied for supercharging, as discussed below 's.In further example, speed changer 222 can be couple to air pump by gear-box (not shown), wherein can be according to hair Engine operation parameter rapidly or slowly drives air pump 220.

The nitrous oxide injection of the two-step engine supercharging system 200 shown in Fig. 2 and Fig. 5 zoomed-in view 500 System 250 can include storage box 206, and it is used to store nitrous oxide under stress for supercharging application.In storage box Exit, pressure gauge 208 can be used for monitor storage box 206 in pressure.Feed line 210 from storage box 206 can So that storage box 206 is fluidly connected to engine 201, as shown in Figure 2.

First valve 211 can adjust stream of the nitrous oxide from storage box 206 by feed line 210 to engine 201 It is dynamic, as shown in the view 300 in Fig. 3.In one example, feed line 210 can be fluidly connected to the air inlet of engine System 230.In one example, feed line 210 may be coupled to inlet manifold 232.Through after the first valve 211, flowing Nitrous oxide by feed line 210 can be introduced at inlet manifold 232, and nitrous oxide can be from inlet manifold It is introduced at 232 in engine cylinder.In another example, feed line 210 can be in the air inlet in the downstream of air cleaner 234 Link gas handling system 230 at passage 236.Inlet channel 236 can then connect to inlet manifold 232.

The position of first valve 211 can be controlled by actuator, and solenoid, stepper motor etc., the actuator are configured Ordered into being received in response to engine operating condition from controller (such as Fig. 1 controller 12), as discussed below with reference to Fig. 7.

As shown in Fig. 2 two-step engine supercharging system 200 also includes longitudinal beam pressure charging system 252.Longitudinal beam increases Pressure system 252 can include the air pump 220 for being couple to the speed changer 222 of engine 201, as described above.By speed changer driving Compressed air can be directed to the first rail 202 and the second rail 203 by air pump 220.First rail 202 and the second rail 203 can pass through Crossbeam 204 fluidly connects.In addition, multiple structural beams 204a can be provided by connecting the first rail 202 and the second longitudinal beam Structural support.In one example, multiple structural beams 204a can be hollow and can fluidly connect the first rail 202 With the second rail 203.In other examples, multiple structural beams 204a can be not configured to fluidly connect the first rail and second Rail, for example, multiple structural beams 204a can be solid or be not adapted to leakproof.

First rail 202 and the second rail 203 can be existing longitudinal beam together with crossbeam 204, and it is to each portion of vehicle Part provides structural support.In one example, the first rail 202 and the second rail 203 can position and be attached to the existing bottom of vehicle Disk, or the support of support engine and speed changer can be included.First rail 202 and the second rail 203 can with it is parallel to each other, along vehicle Length L extension, as shown in Figure 2.Crossbeam 204 and multiple structural beams 204a can be perpendicular to the first rail 202 and the second rails 203.Crossbeam 204 and multiple structural beams 204a can pass through the distance D of the first rail 202 of separation and the second rail 203.

Longitudinal beam pressure charging system 252 can be the airtight storage dress for storing the compressed air supplied from air pump 220 Put.First rail 202 and the second rail 203 can be hollow sealing pipe, except in specific air inlet or gas outlet Dian Chu, wherein leakproof Sealing can make the first rail 202 and the second rail 203 be fluidly connected to other fluid conduit systems.

The air memory capacity of longitudinal beam supercharging air system can depend on multiple barrier plates 270 along the first rail 202 and second rail 203 and the placement at crossbeam 204, as shown in Figure 2.Multiple barrier plates 270 can be indulged positioned at hollow frame In beam and in hollow cross, and it can stop and be fluidly connected with longitudinal beam supercharging air system, to limit longitudinal beam The volume of air storage in pressure charging system.The air of inflow longitudinal beam supercharging air system from compressor can store In the volume limited by multiple barrier plates 270 along hollow frame longitudinal and cross beam.In other examples, barrier plate can be with In other orientation of longitudinal beam pressure charging system, so as to limit the storage volume for compressed air.

In one example, crossbeam 204 can be fluidly connected to the first rail 202 and the second rail 203.In one example, Crossbeam 204 can be hollow GT tube, so as to serve as the fluid conduit systems between the first rail 202 and the second rail 203 and to vehicle frame Longeron provides structural support.

Compressed air can be directed into the first rail 202 and the second rail 203 from air pump 220 by pump outlet conduit 224.Pump Delivery channel 224 can be divided into the first conduit 223 and the second conduit 225, as shown in the zoomed-in view 400 in Fig. 4.First conduit 223 can supply compressed air from air pump 220 to the first rail 202, and the second conduit 225 can be supplied to crossbeam 204 and compressed Then air, crossbeam 204 can be fluidly connected to the second rail 203.In another example, the first conduit 223 and the second conduit 225 The first rail 202 and the second rail 203 can be fluidly connected to respectively, so as to be conveyed from air pump 220 to longitudinal beam pressure charging system 252 Compressed air.

The air that longitudinal beam pressure charging system 252 is pumped into from air pump and is conveyed from longitudinal beam to engine can be by edge One or more intercooler (not shown) cooling that inlet air flow path positions to engine, it is cold to be provided to engine But pressurized air is used to burn.Along from air pump to the inlet air flow path of longitudinal beam pressure charging system there may be one or Multiple filters, for example, the filter 212 of the porch between air pump 220 and longitudinal beam pressure charging system 252.

Air in longitudinal beam pressure charging system 252 can be exited the first rail 202 and be passed through by first outlet conduit 216 Second outlet conduit 218 exits the second rail 203, as shown in Figure 2.First outlet conduit 216 and second outlet conduit 218 can connect Tie at the supercharging introduction point 214 near engine 201, as shown in Figures 2 and 3.Second valve 215 may reside in supercharging and introduce At point 214.

Being pressurized introduction point 214 can be at gas handling system 230.In one example, being pressurized introduction point 214 can be in air inlet At manifold 232.In another example, being pressurized introduction point 214 can be at the admission line 236 of the upstream of inlet manifold 232.Supercharging Aerial cooler may reside in the supercharging upstream of introduction point 214 to cool down the pressurized air conveyed to engine, such as along making Compressor 162 is connected to charger-air cooler 165 existing for the air line 163 of the inlet manifold 44 in Fig. 1.Show another In example, charger-air cooler may reside in the supercharging downstream of introduction point 214.In some instances, there may be more than one Charger-air cooler.Being pressurized introduction point 214 can be in the upstream of the air throttle along gas handling system, for example, linking in Fig. 1 The upstream of air throttle 162 inlet manifold 44 air line 163.Throttle position can be adjusted to adjust the increasing to engine Pressure conveying.

The position of the second valve 215 at supercharging introduction point 214 can be controlled by actuator, such as solenoid, stepper motor It is configured in response to engine operating condition and receives from controller (such as Fig. 1 controller 12) order Deng, the actuator, it is such as following By what is discussed with reference to figure 7.

Pressure in longitudinal beam pressure charging system 252 can be monitored for example by pressure sensor 240.Along the first rail 202 There may be pressure sensor 240.In another example, the position of pressure sensor 240 can be along the second rail.Show other In example, there may be more than one pressure sensor along longitudinal beam pressurized sensor 252.It is pressurized based on longitudinal beam and is Pressure in system, it can be estimated that the available air memory capacity of longitudinal beam storage system, and can correspondingly adjust car The air-flow of frame longeron storage system.For example, if pressure is less than threshold value, additive air can flow to longitudinal beam increasing from air pump Pressure system 252.On the contrary, if pressure is more than function threshold value, longitudinal beam air system can have enough air with Supercharging is provided to engine.The pressure regulation two-step based on longitudinal beam pressure charging system will be discussed further with reference to figure 7 to start The operation of machine pressure charging system.

Fig. 6 shows there is the increasing of the two-step engine of longitudinal beam pressure charging system 652 and nitrous oxide spraying system 650 The schematic diagram 600 of pressure system (for example, Fig. 1 two-step engine supercharging system 200).Longitudinal beam pressure charging system 652 can be with Including being pressurized the first rail 602 of application and the second rail 603 and the first rail 602 of connection and the second rail for air storage 603 crossbeam 604.In addition, multiple structural beams 604a can provide structural support to the first rail 602 and the second rail 603.Start Machine 691 can be couple to speed changer 622, similar to the engine 201 for the speed changer 222 for being couple to Fig. 2 to Fig. 5.Speed changer 622 Can according to the engine operating condition including car speed out of engagement with.Speed changer 622 can for example pass through speed change in engagement The output shaft driving of device is couple to the air pump 620 of speed changer.In one example, air pump 620 can be air compressor.Come from The air of air pump 620 can flow through air pump delivery channel 624 and flow to the first rail 602 by the first conduit 623, and by second Conduit 625 flows to the second rail 203.In one example, the first conduit 623 can be directly connected to the first rail 602, and second leads Pipe 625 can be fluidly coupled to crossbeam 604, then it can be fluidly connected to the first rail 602 and the second rail 603.

Air can be further moved to take available space along the first rail 602 and the second rail 603, as with arrow Shown in dotted line.Available space in longitudinal beam pressure charging system can be by along the first rail and the second rail and in crossbeam 604 Multiple barrier plates 670 limit.The additional and/or replacement of barrier plate, which is placed, can be used for further limiting for air storage Available space.

In one example, pump outlet conduit 624 can lead to crossbeam 604, and it can make air from pump rail flow into first In rail and the second rail.When the first rail 602 and the second rail 603 reach maximum storage capacity, air pump 620 can be from speed changer 622 Depart from, for example, being departed from by making air pump be couple to the electromagnetic clutch of speed changer, in this case, without more air Longitudinal beam can be directed into from air pump 620.

Being stored in the air in longitudinal beam pressure charging system 252 can be by first outlet conduit 616 at the first rail 602 Exit, and exited by second outlet conduit 618 at the second rail 693, as shown in fig. 6, and can be flowed towards supercharging introduction point 614 It is dynamic.Valve 615 may reside at supercharging introduction point 614.Valve 615 can be adjusted from longitudinal beam pressure charging system 652 to engine 601 air-flow according to engine operating condition to provide supercharging, as will be described with reference to Figure 7.

Supercharging can spray system by the nitrous oxide including the storage box 606 for storing nitrous oxide under stress System 650 provides.When being instructed to, nitrous oxide can be transported to engine by feed line 610 from storage box 606, such as With the shown in solid of arrow.Valve 611 can adjust flowing of the nitrous oxide from feed line 610 to engine 601.

Fig. 7 shows to be used to operate two-step engine supercharging system (for example, the two of the engine 201 being couple to shown in Fig. 2 Step formula engine supercharging system 200) method 700.Two-step engine supercharging system can include nitrous oxide injection system System 250 and longitudinal beam pressure charging system 252, above with reference to as described in Fig. 2 to Fig. 5.In one example, method 700 can With by adjusting the first valve 211 and the second valve in response to engine operating condition (such as, engine torque demand, engine speed etc.) Flowed to adjust the supercharging of engine 215 position.

Instruction for remaining method included by implementation 700 and this paper can be by the controller of such as controller 12 Based on the instruction being stored on the memory of controller and with reference to from including above with reference to the NOx sensor described in Fig. 1, UEGO Signal that the sensors of the engine systems such as sensor, pressure sensor receives performs.According to methods as described below, control Device can use the engine actuators adjustment power operation of engine system.In one example, based on from sensor Input, controller 12 can use the first valve 211 and second valve 215 for being couple to two-step engine supercharging system 200 Actuator adjusts the position of the first valve 211 and the second valve 215.

Method 700 is started at 702 by assessing engine operation parameters, and engine operation parameters can include but unlimited In engine speed, engine torque demand, engine temperature etc..At 704, method 700 determines whether speed, transmission is big In 0 (if for example, the output shaft of speed changer is rotated with the speed more than 0).If speed, transmission is not more than 0 at 704, Speed changer can be departed from, for example, when out-of-gear dallies (for example, during parking).Method 700 proceeds to 705, at 705, becomes Fast device is not from engine to wheel or air pump delivering power.Therefore, no compressed air flows to longitudinal beam from air pump and is used for Storage.Method 700 is then back to.

If speed, transmission is more than 0 at 704, method 700 proceeds to 706, at 706, engages speed changer, so as to Engine power is transmitted to wheel and the air pump for being couple to speed changer.In one example, the output shaft of speed changer can make gas Pump rotation is used to be stored in longitudinal beam so as to compressed air.

Method 700 proceed to 707 with by assess the pressure in longitudinal beam system whether in max-thresholds pressure come Determine whether longitudinal beam pressure charging system has additive air memory capacity.If it is, method 700 can not from compressor to Longitudinal beam storage system guides additive air.Pump can utilize electromagnetic clutch out of engagement with, electromagnetic clutch using come From ECM signal activation.Method 700 then proceeds to the 712 of more detail below.If however, longitudinal beam supercharging system Pressure in system is not at max-thresholds pressure (for example, it is less than max-thresholds pressure), then method 700 can make at 710 Air is flowed from air pump to longitudinal beam pressure charging system for storing.

At 712, method 700 determines whether engine torque demand is more than threshold torque.In one example, threshold value is turned round Square can be fixed preset torque.In another example, threshold torque can include for example during accelerated events it is current not Any increase for the torque demand being satisfied.If torque demand is not more than threshold torque at 712, method 700 proceeds to 712, this will explained in further detail below.

If torque demand is more than threshold torque at 712, for example, during accelerated events, during up-hill journey etc., Then method 700 proceeds to 713.At 713, method 700 checks that the air of abundance whether there is to store in longitudinal beam air and is It is pressurized in system with supplying.Pressure in longitudinal beam system can be determined for example by the pressure sensor 240 shown in Fig. 2. It can assess whether the pressure in longitudinal beam system is more than threshold pressure at 713.Threshold pressure at 713 can be less than Longitudinal beam pressure max-thresholds at 707.If longitudinal beam pressure is more than threshold pressure at 713, longitudinal beam increases Pressure system has enough air and is used to meet boost demand to provide engine.Method 700 proceeds to 715, at 715, Air is from longitudinal beam pressure charging system to engine spray to meet torque demand, and nitrous oxide spraying system keeps not living It is dynamic.Closing position is maintained at by the way that the second valve is positioned in the open position, while for the first valve of nitrous oxide injection In, air is from longitudinal beam to engine spray.In one example, during 715, when the air from longitudinal beam is drawn When leading engine, the pressure in longitudinal beam pressure charging system can be descended to below threshold pressure, so as to indicate the sky of abundance Gas may not be usable for providing supercharging in longitudinal beam.During this situation, can carry out from longitudinal beam pressure charging system to The conversion of nitrous oxide spraying system, wherein instead of guiding air from longitudinal beam, from nitrous oxide spraying system Nitrous oxide makes engine flowing meet torque demand.Method 700 is then back to.

If longitudinal beam pressure is not more than threshold pressure at 713, method 700 proceeds to 714, at 714, in order to Meet torque demand, nitrous oxide can be ejected into engine from nitrous oxide spraying system.In one example, an oxygen Feed line can be flowed through, flow to engine by the first valve in open position by changing phenodiazine, be used so as to provide direct oxygen source In increasing in-engine fuel combustion, secondary power is generated to meet torque demand.

At 714, in one example, nitrous oxide spraying system can be movable in predetermined period, afterwards method 700 proceed to 716 to determine engine torque demand whether still greater than threshold torque (for example, continuing up-hill journey).If not, Can then not expect to be pressurized, and nitrous oxide spraying system can close at 730 by closing the first valve, rear Method 700 returns.

If torque demand is more than threshold value at 716, the supercharging to engine still it is expected.Method 700 proceeds to 718 It is pressurized with checking in air storage system with the presence or absence of enough air with supplying.Longitudinal beam system can be determined at 718 Interior pressure and it can assess whether the pressure is more than threshold value.Pressure threshold can be less than the longitudinal beam pressure at 707 at 718 Power max-thresholds.If longitudinal beam pressure is more than threshold pressure at 718, longitudinal beam pressure charging system has enough skies Gas is used to meet torque demand to provide engine.Method 700 proceeds to 720, at 720, nitrous oxide spraying system Such as by the way that the first valve is positioned in closing position to close, and the exhaust from longitudinal beam system is directed to pass through Open the second valve and flow to engine.The compressed air of engine is fed to from longitudinal beam system to be increased in engine cylinder Fuel combustion, this can provide desired moment of torsion to engine.Method 700 returns.

At 718, if the pressure in longitudinal beam is less than threshold pressure, sufficient air can not in longitudinal beam For being conveyed from longitudinal beam to engine.In this case, method 700 proceeds to 732, at 732, nitrous oxide spray System holding activity is penetrated, so as to supply nitrous oxide to engine by the first valve in open position to meet that supercharging will Ask.Method 700 is then back to.

If as described above, torque demand is not more than threshold value at 712, if for example, meet engine torque (for example, Engine does not accelerate), then method 700 proceeds to 721 to assess whether engine speed is more than threshold velocity.In an example In, threshold velocity can be relatively high engine speed, all such as larger than 300RMP.If it is not, then method proceeds to 722, At 722, two pressure charging systems are inactive (for example, the first valve 211 and the second valve 215 are in closing position), and are not pressurized Engine is provided.Method 700 returns.

If engine speed is more than threshold velocity at 721, method 700 proceeds to 724 to assess in longitudinal beam Pressure whether be more than threshold value.If it is, nitrous oxide spraying system remains inactive at 728, and indulged from vehicle frame The air of beam pressure charging system is ejected into engine.Method 700 is then back to.By this way, if when meeting torque demand Engine just experience continues high speed operation, for example, the high speed operation after reaching the accelerated events of high speed, then can provide additional It is pressurized to allow high speed operation.

If being less than threshold pressure in the air pressure at 724 in longitudinal beam, method 700 proceeds to 726,726 Place, when no air can be used for being ejected into engine in longitudinal beam, activation nitrous oxide spraying system is with to starting Machine provides desired supercharging.Method 700 is then back to.

Therefore, two-step engine supercharging system can be conveyed by using longitudinal beam air-injection system to engine Required supercharging, longitudinal beam air-injection system are configured to during high torque demand status via being couple to vehicle speed variation The compressor of device provides supercharging.During the disabled situation of supercharging from longitudinal beam air-injection system, such as work as pressure When contracting machine accelerates, nitrous oxide spraying system can be used for directly being pressurized.Once compressor is in command speed and/or once The air supply being stored in longitudinal beam air-injection system reaches threshold value, can disable nitrous oxide spraying system, And the system may switch to convey via longitudinal beam air-injection system and be pressurized.By this way, only when torque demand height And when non-continuous, supercharging can be provided, so as to eliminate the demand of the pressure charging system very high to big and/or cost and offer has Cost benefit and efficient pressure charging system are used for real world travel conditions.

Fig. 8 shows the exemplary operations order 800 during the operation of two-step engine supercharging system.With above with reference to During the operation of the engine for the two-step pressure charging system 200 that Fig. 2 to Fig. 6 is discussed, exemplary operations order 800 can be generated.Hair Motivation torque demand (curve map 802) and nitrous oxide injection valve (curve map 802) and longitudinal beam air injection valve (curve Figure 80 6) correspondence position (open or close) and longitudinal beam air pressure (curve map 808) along Y-axis line draw.X-axis Line represents the time, and it increases from the right side of the left lateral view of figure.The time that instruction is interested (with dotted line) is marked vertically.

Before T1, torque demand (curve map 802) is less than threshold torque 801 so that undesirable supercharging, therefore an oxidation Phenodiazine injection valve (curve map 804) and longitudinal beam injection valve (curve map 806) may be at closing position, and not be pressurized It is fed to engine.Before T1, longitudinal beam air pressure 808 can be less than threshold pressure 807.In one example, exist Before T1, when additive air storage can be used in longitudinal beam, additive air can be drawn by the air pump driven by speed changer Lead longitudinal beam.

At T1, torque demand (curve map 802) is more than threshold torque 801.In one example, due to accelerated events, Such as during vehicle launch, torque demand can increase at T1.In order to meet torque demand, nitrous oxide injection valve exists Open position (curve map 804) can be moved at T1, so as to supply nitrous oxide to engine to meet between T1-T2 Direct torque demand.During T1-T2, longitudinal beam air pressure (curve map 808) increase, and the gas driven by speed changer Pump continues to guide air to longitudinal beam pressure charging system, but longitudinal beam air pressure is still less than threshold pressure 807.Therefore, Not being pressurized can supply from longitudinal beam supercharging air system.Further, because speed changer can be with before vehicle launch It is not engaged, so gas pump/compressor can not exclusively accelerate during vehicle launch/accelerated events.When compressor does not add When fast, even if some air are stored in longitudinal beam pressure charging system, compressor may can not also meet boost demand, therefore can Instead to supply nitrous oxide.

At T2, longitudinal beam air pressure can increase to reach threshold pressure more than 807, and compressor may be at At full speed.The conversion of pressure charging system can occur at T2, wherein nitrous oxide injection valve is moved to closing position (curve map 804), at the same longitudinal beam air injection valve open (curve map 806), so as to from longitudinal beam to engine guide air with In meeting torque demand.In one example, when nitrous oxide injection valve and longitudinal beam injection valve are opened with maintenance pair During the supercharging supply of engine, there may be short overlaid periodic.When the air from longitudinal beam during T2-T3 by beating When the longitudinal beam air injection valve opened flow to engine, the corresponding pressure in longitudinal beam can keep reducing, such as curve Shown in Figure 80 8.

At T3, torque demand 802 can be met, torque demand can be less than threshold torque 801, and nitrous oxide Injection valve and longitudinal beam air injection valve may be at closing position.At T3, longitudinal beam air pressure (curve map 808) threshold pressure 807 can be less than.In one example, such as in T3-T4 and T4-T5 longitudinal beam pressure gradual increase Shown, when speed changer engages (rotation air pump), sky can be conveyed to longitudinal beam by being couple to the air pump of the speed changer of engine Gas is used to store.

Between T4-T5, torque demand (curve map 802) can be more than threshold torque 801 again.Needed in response to moment of torsion Ask, torque demand can be met by opening nitrous oxide air injection valve (curve map 804) supply supercharging.In T4-T5 Period is ejected into the conversion of longitudinal beam air injection without progress from nitrous oxide, because longitudinal beam air pressure is less than Enough air are not present in threshold pressure 807, wherein longitudinal beam for meeting torque demand.Nitrous oxide injection valve Continue to stay open during T4-T5, and longitudinal beam air injection valve remains closed.At T5, torque demand is turned round in threshold value At square 801, in response to this, nitrous oxide injection valve can close, because need not more be pressurized.

During T3-T4 and T4-T5, longitudinal beam pressure can be continuously increased, close to threshold pressure 807.At T5, car Frame longeron air pressure (curve map 808) reaches threshold pressure 807.Longitudinal beam air pressure can continue during T5-T6 Rise, because speed changer can engage and rotate air pump so that air is stored in longitudinal beam, until reaching appearance at T6 Measure pressure 809.Longitudinal beam can have now enough pressure be used in response to subsequent torque demand increase and from vehicle frame Longeron pressure charging system sprays air, without spraying nitrous oxide.

At T6, longitudinal beam air pressure can be at capacity pressure 809.Torque demand (curve map 802) is at T6 Threshold torque can be more than.Torque demand during the duration can be by opening longitudinal beam air injection valve (curve Figure 80 6) meet, while continue to make nitrous oxide injection valve in the close position, so as to spray longitudinal beam air with full Sufficient torque demand.Torque demand (curve map 802) can be satisfied at T7 and can descend to below threshold torque.Therefore, During T6-T7, by only guide longitudinal beam air be used for be pressurized meet torque demand.Do not sprayed during T6-T7 Nitrous oxide, because enough air can be used for meeting torque demand in longitudinal beam, and even if pressure in longitudinal beam The supply of contracting air is depleted, and the rotation that compressor can also be sufficiently fast is to maintain the conveying of compressed air.

Between T7-T8, torque demand (curve map 802) can be less than threshold torque 807, longitudinal beam air injection valve (curve map 806) and nitrous oxide injection valve (curve map 804) close.Longitudinal beam air pressure (curve map 808) exists Continue to increase after T7.The air pump driven by speed changer can direct air into longitudinal beam air storage system.Before T8, Longitudinal beam air pressure increases to greater than threshold pressure 807 but is not reaching to capacity pressure 809, so as to indicate that some air exist It can be used for supercharging application in longitudinal beam system.

At T8, torque demand can increase to more than threshold torque demand.Longitudinal beam air sprays during T8-T9 Valve can be opened to provide supercharging, and nitrous oxide injection valve remains closed.When from longitudinal beam air system spray air When, longitudinal beam air pressure can keep reducing (curve map 808), and can be reduced to threshold pressure below 807 at T9. At T9, torque demand is still greater than threshold torque 801, and therefore, pressure charging system is transformed into an oxygen from longitudinal beam system at T9 Change phenodiazine spraying system.

During T9-T10, when longitudinal beam air injection valve closes (curve map 806), pass through one in open position Nitrous oxide injection valve (curve map 804) sprays nitrous oxide to meet torque demand.At T10, torque demand meet and Nitrous oxide injection valve closes.

By this way, in response to engine operating condition, two-step engine supercharging system can be by by nitrous oxide It is ejected into from storage box in engine cylinder or by the way that the air being stored in longitudinal beam pressure charging system is ejected into engine And the supercharging needed for being supplied to engine.The air pump driven by the speed changer of engine can guide air to be used to be stored in vehicle frame In longeron pressure charging system.

By being changed between nitrous oxide spraying system and longitudinal beam pressure charging system to adjust the increasing of engine The technique effect of stream is pressed to include providing enough power to engine to meet the moment of torsion during real world travel conditions Demand, without increasing Vehicular system cost and complexity.

A kind of system, including：Nitrous oxide storage box, it is fluidly coupled to engine by feed line；Air pump, It is driven by the speed changer of engine, and the air pump is fluidly connected to the longitudinal beam supercharging system for being fluidly coupled to engine System；First valve, it adjusts flowing of the nitrous oxide from feed line to engine；And second valve, it adjusts air from car Flowing of the frame longeron pressure charging system to engine.In the first example of the system, wherein longitudinal beam pressure charging system includes flat For row in the first hollow frame longeron of the second hollow frame longeron, the second hollow frame longeron, which carries, indulges the first hollow frame Beam is fluidly connected to the hollow cross of the second hollow vehicle rail.Second example of the system alternatively including the system the One example and also include, wherein chassis positioning of the longitudinal beam supercharging air system along vehicle, the first hollow frame longeron is along car Length parallel to the second hollow frame longeron, and wherein the first hollow frame longeron, the second hollow frame longeron and One hollow cross is configured to support engine.3rd example of the system alternatively includes in the first example and the second example One or more and also include, wherein electromagnetic clutch can make air pump be joined to speed changer.4th example of the system is optional Ground includes one or more of first example to the 3rd example and also includes controller, it include executable instruction with response to First valve is actuated into open position by engine torque demand higher than threshold value.5th example of the system alternatively includes One or more of first example to the 4th example and also include, wherein controller includes executable instruction with response to starting First valve is actuated into closure by the pressure that machine torque demand is higher than in threshold value and longitudinal beam pressure charging system higher than threshold pressure Second valve is simultaneously actuated into open position by position.6th example of the system alternatively includes the first example into the 5th example One or more and also include, wherein also including at least one pressure sensor, it is configured to indulge to controller transmission vehicle frame Pressure in beam pressure charging system.7th example of the system alternatively includes one or more of first example to the 6th example And also include, wherein at least one charger-air cooler be present along longitudinal beam pressure charging system.8th example of the system can Selection of land includes one or more of first example to the 7th example and also included, and wherein feed line and increases from longitudinal beam The air conduit of pressure system is connected to the gas handling system of engine.

A kind of method for engine, including：In response to engine torque demand higher than threshold value and in response to vehicle frame The pressure of longeron pressure charging system is less than threshold pressure, from nitrous oxide spraying system to engine spray nitrous oxide, and It is higher than threshold pressure in response to pressure of the engine torque demand higher than threshold value and in response to longitudinal beam pressure charging system, suspends Nitrous oxide spray and from longitudinal beam pressure charging system to engine spray compressed air, the longitudinal beam pressure charging system from by The compressor of the speed changer driving of engine receives compressed air.In first example of this method, in addition to：In response to starting Machine torque demand is less than threshold velocity higher than threshold value and the speed in response to compressor, is sprayed from nitrous oxide spraying system Nitrous oxide.Second example of this method alternatively includes the first example and also included, low in response to engine torque demand It is higher than threshold pressure higher than the pressure in threshold speed and longitudinal beam pressure charging system in threshold value, engine speed, from vehicle frame Longeron pressure charging system is to engine spray air.3rd example of this method alternatively includes in the first example and the second example It is one or more and also include, turned round in response to the pressure of longitudinal beam pressure charging system higher than threshold pressure and in response to engine Square demand is higher than threshold value, from longitudinal beam pressure charging system to engine spray air, and is starting from longitudinal beam pressure charging system After spraying air, and in response to engine torque demand higher than threshold value and low in response to the pressure of longitudinal beam pressure charging system In threshold pressure, suspend air from the injection of longitudinal beam pressure charging system and from nitrous oxide spraying system to engine spray Nitrous oxide.4th example of this method alternatively includes one or more of first example to the 3rd example and also wrapped Include, be higher than threshold pressure in response to the pressure of longitudinal beam pressure charging system and be higher than threshold value in response to engine torque demand, From longitudinal beam pressure charging system to engine spray air, until engine torque demand is dropped to below threshold value without activating an oxygen Change phenodiazine spraying system.5th example of this method alternatively includes one or more of first example to the 4th example and gone back Including making air be flowed from compressor to longitudinal beam pressure charging system for storing.6th example of this method alternatively includes the One or more of one example to the 5th example and also include in response to the pressure in longitudinal beam storage system being in capacity Threshold value, stop flowing of the air from compressor to longitudinal beam storage system.

Another example system includes：Nitrous oxide storage box, it is fluidly coupled to engine by the first valve；Gas Pump, it is driven by the speed changer of engine, and the air pump is fluidly connected to longitudinal beam pressure charging system, longitudinal beam supercharging system System fluidly connects coupling to engine by the second valve；And the controller of storage instruction, the instruction are executable with response to moment of torsion First valve is optionally actuated into open position and the second valve is actuated into closing position by demand higher than threshold requirement, so as to From nitrous oxide storage box to engine spray nitrous oxide, and the first valve is set optionally to be actuated into closing position simultaneously The second valve is set to be actuated into open position, so as to from longitudinal beam pressure charging system to engine spray air.

In the first example of the system, wherein controller includes instruction, and it can perform to be pressurized in response to longitudinal beam Pressure in system makes the first valve be actuated into open position and the second valve is actuated into closing position less than threshold pressure, and rings Higher than threshold pressure the first valve should be made to be actuated into closing position in the pressure in longitudinal beam pressure charging system and cause the second valve Move to open position.Second example of the system alternatively includes the first example and also included, in addition to limits longitudinal beam and increase Multiple barrier plates of the air memory capacity of pressure system.

Pay attention to, the example control and estimation program being included herein can match somebody with somebody with various engines and/or Vehicular system Put and be used together.Control method and program disclosed herein can be stored as the executable instruction in non-transitory memory, and And it can be performed by the control system including controller and various sensors, actuator and other engine hardwares.It is described herein Specific procedure can represent any amount of processing one or more of strategy, it is such as event driven, interrupt driving, It is multitask, multithreading etc..Therefore, shown various actions, operation and/or function can perform, simultaneously in the order shown Perform or omit in some cases capablely.Equally, the order of processing be not the embodiment for realizing description of originally tattooing the face feature and Necessary to advantage, but provided for convenience of description with description.According to the specific policy used, shown behavior, operation and/ Or one or more of function can be repeatedly performed.In addition, described behavior, operation and/or function can be graphical Ground is programmed into the code within the non-transitory memory of the computer-readable recording medium of engine control system, wherein Described behavior is performed by performing the instruction in the system for including various engine hardware components and electronic controller.

It should be appreciated that construction disclosed herein and program are inherently exemplary, and these are embodied Example is not taken in a limiting sense, because many variants are possible.For example, above-mentioned technology can use to V-6, I-4, I-6, V-12, opposed 4 cylinder and other engine types.The theme of the disclosure include various systems disclosed herein and configuration and Further feature, function and/or all novel and non-obvious combination of property and sub-portfolio.

Appended claims, which are specifically noted, is considered as novel and non-obvious particular combination and sub-portfolio.These Claim can be related to "one" element or " first " element or its equivalent.Such claim is appreciated that bag The combination of element as one or more is included, both two or more neither requiring nor excluding such elements.Disclosed Feature, function, element and/or other combinations of property and sub-portfolio can by change claims hereof or by It is proposed that new claim is claimed in the application of the application or correlation.Such claim, no matter than former claim Scope is wider, narrower, equivalent or different, is all considered in the theme of the disclosure.

Claims

1. a kind of system, including：

Nitrous oxide storage box, it is fluidly coupled to engine by feed line；

Air pump, it is driven by the speed changer of the engine, and the air pump, which is fluidly connected to, is fluidly coupled to described start The longitudinal beam pressure charging system of machine；And

First valve, it adjusts flowing of the nitrous oxide from the feed line to the engine, and the second valve, and it is adjusted Flowing of the air from the longitudinal beam pressure charging system to the engine.

2. system according to claim 1, wherein the longitudinal beam pressure charging system is included parallel to the second hollow frame First hollow frame longeron of longeron, the second hollow frame longeron, which carries, makes the first hollow frame longeron fluidly connect It is connected to the hollow cross of the described second hollow vehicle rail.

3. system according to claim 2, wherein chassis positioning of the longitudinal beam pressure charging system along vehicle, described the Length of the one hollow frame longeron along the vehicle is parallel to the second hollow frame longeron, and wherein described first hollow car Frame longeron and the second hollow frame longeron are configured to support the engine.

4. system according to claim 1, wherein electromagnetic clutch can make the air pump be joined to the speed changer.

5. system according to claim 1, wherein the air pump is the shaft-driven air pressure of output by the speed changer Contracting machine.

6. system according to claim 1, in addition to controller, it includes executable instruction, to be turned round in response to engine First valve is actuated into open position by square demand higher than threshold value.

7. system according to claim 6, wherein the controller includes executable instruction, with response to engine torque The pressure that demand is higher than in the threshold value and the longitudinal beam pressure charging system activates first valve higher than threshold pressure Open position is actuated into closing position and by second valve.

8. system according to claim 7, in addition at least one pressure sensor, it is configured to the controller Transmit the pressure in the longitudinal beam pressure charging system.

9. system according to claim 1, wherein at least one pressurized air be present along the longitudinal beam pressure charging system Cooler.

10. system according to claim 1, wherein the feed line and the sky from the longitudinal beam pressure charging system Airway is connected to the gas handling system of the engine.

11. a kind of method, including：

It is less than threshold pressure in response to pressure of the engine torque demand higher than threshold value and in response to longitudinal beam pressure charging system, From nitrous oxide spraying system to engine spray nitrous oxide；And

In response to the engine torque demand higher than the threshold value and in response to described in the longitudinal beam pressure charging system Pressure is higher than the threshold pressure, and pause nitrous oxide sprays and sprayed from the longitudinal beam pressure charging system to the engine Compressed air is penetrated, the longitudinal beam pressure charging system receives compression sky from the compressor of the speed changer driving by the engine Gas.

12. the method according to claim 11, in addition to：In response to the engine torque demand higher than the threshold value with And it is less than threshold velocity in response to the speed of the compressor, spray nitrous oxide from the nitrous oxide spraying system.

13. the method according to claim 11, in addition to：In response to the engine torque demand less than the threshold value, Engine speed is higher than the threshold pressure higher than the pressure in threshold speed and the longitudinal beam pressure charging system, from The longitudinal beam pressure charging system is to the engine spray air.

14. the method according to claim 11, in addition to：It is high in response to the pressure of the longitudinal beam pressure charging system It is higher than the threshold value in the threshold pressure and in response to the engine torque demand, from the longitudinal beam pressure charging system To the engine spray air；And

Starting after the longitudinal beam pressure charging system sprays air, and be higher than institute in response to the engine torque demand State threshold value and the pressure in response to the longitudinal beam pressure charging system is less than the threshold pressure, pause air is from described The injection of longitudinal beam pressure charging system and the oxidation two from the nitrous oxide spraying system to the engine spray one Nitrogen.

15. the method according to claim 11, in addition to：It is higher than in response to the pressure for stating longitudinal beam pressure charging system The threshold pressure and it is higher than the threshold value in response to the engine torque demand,

From the longitudinal beam pressure charging system to the engine spray air, until the engine torque demand drop to it is described Below threshold value, without activating the nitrous oxide spraying system.

16. according to the method for claim 11, in addition to air is set to be pressurized system from the compressor to the longitudinal beam System flowing is used to store.

17. the method according to claim 11, in addition to：At the pressure of the longitudinal beam pressure charging system In capacity threshold, stop flowing of the air from the compressor to the longitudinal beam pressure charging system.

18. a kind of system, including：

Nitrous oxide storage box, it is fluidly coupled to engine by the first valve；

Air pump, it is driven by the speed changer of the engine, and the air pump is fluidly connected to longitudinal beam pressure charging system, described Longitudinal beam pressure charging system is fluidly coupled to the engine by the second valve；And

Store the controller of instruction, the instruction is executable to be more than threshold requirement in response to torque demand and by first valve Optionally it is actuated into open position and second valve is actuated into closing position, so as to from the nitrous oxide storage box To the engine spray nitrous oxide, and first valve is optionally actuated into closing position and make described second Valve is actuated into open position, so as to from the longitudinal beam pressure charging system to the engine spray air.

19. system according to claim 18, wherein the controller includes instruction, it is executable with response to the car Pressure in frame longeron pressure charging system makes first valve be actuated into the open position less than threshold pressure and makes described the Two valves are actuated into the closing position, and are higher than the threshold pressure in response to the pressure in the longitudinal beam pressure charging system Power and first valve is actuated into the closing position and second valve is actuated into the open position.

20. system according to claim 18, in addition to limit the air memory capacity of the longitudinal beam pressure charging system Multiple barrier plates.